dnscontrol/docs/_providers/cloudflare.md
Patrick G efe302a957 Fixed Cloudflare docs (#224)
- Grammar fixes
- Fixed wrong highlighting type
- Formatted markdown better
- Other various fixes
2017-10-11 09:55:57 -04:00

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Markdown

---
name: Cloudflare
title: Cloudflare Provider
layout: default
jsId: CLOUDFLAREAPI
---
# Cloudflare Provider
## Configuration
In the credentials file you must provide your Cloudflare API username and access token:
{% highlight json %}
{
"cloudflare": {
"apikey": "your-cloudflare-api-key",
"apiuser": "your-cloudflare-email-address"
}
}
{% endhighlight %}
## Metadata
Record level metadata availible:
* `cloudflare_proxy` ("on", "off", or "full")
Domain level metadata availible:
* `cloudflare_proxy_default` ("on", "off", or "full")
Provider level metadata availible:
* `ip_conversions`
* `manage_redirects`: set to `true` to manage page-rule based redirects
What does on/off/full mean?
* "off" disables the Cloudflare proxy
* "on" enables the Cloudflare proxy (turns on the "orange cloud")
* "full" is the same as "on" but also enables Railgun. DNSControl will prevent you from accidentally enabling "full" on a CNAME that points to an A record that is set to "off", as this is generally not desired.
**Aliases:**
To make configuration files more readable and less prone to errors,
the following aliases are pre-defined:
{% highlight js %}
// Meta settings for individual records.
var CF_PROXY_OFF = {'cloudflare_proxy': 'off'}; // Proxy disabled.
var CF_PROXY_ON = {'cloudflare_proxy': 'on'}; // Proxy enabled.
var CF_PROXY_FULL = {'cloudflare_proxy': 'full'}; // Proxy+Railgun enabled.
// Per-domain meta settings:
// Proxy default off for entire domain (the default):
var CF_PROXY_DEFAULT_OFF = {'cloudflare_proxy_default': 'off'};
// Proxy default on for entire domain:
var CF_PROXY_DEFAULT_ON = {'cloudflare_proxy_default': 'on'};
{% endhighlight %}
The following example shows how to set meta variables with and without aliases:
{% highlight js %}
D('example.tld', REG_NONE, DnsProvider(CLOUDFLARE),
A('www1','1.2.3.11', CF_PROXY_ON), // turn proxy ON.
A('www2','1.2.3.12', CF_PROXY_OFF), // default is OFF, this is a no-op.
A('www3','1.2.3.13', {'cloudflare_proxy': 'on'}) // why would anyone do this?
);
{% endhighlight %}
## Usage
Example Javascript:
{% highlight js %}
var REG_NONE = NewRegistrar('none', 'NONE')
var CLOUDFLARE = NewDnsProvider('cloudflare','CLOUDFLAREAPI');
// Example domain where the CF proxy abides by the default (off).
D('example.tld', REG_NONE, DnsProvider(CLOUDFLARE),
A('proxied','1.2.3.4', CF_PROXY_ON),
A('notproxied','1.2.3.5'),
A('another','1.2.3.6', CF_PROXY_ON),
ALIAS('@','www.example.tld.', CF_PROXY_ON),
CNAME('myalias','www.example.tld.', CF_PROXY_ON)
);
// Example domain where the CF proxy default is set to "on":
D('example2.tld', REG_NONE, DnsProvider(CLOUDFLARE),
CF_PROXY_DEFAULT_ON, // Enable CF proxy for all items unless otherwise noted.
A('proxied','1.2.3.4'),
A('notproxied','1.2.3.5', CF_PROXY_OFF),
A('another','1.2.3.6'),
ALIAS('@','www.example2.tld.'),
CNAME('myalias','www.example2.tld.')
);
{%endhighlight%}
## Activation
DNSControl depends on a Cloudflare Global API Key that's available under "My Settings".
## New domains
If a domain does not exist in your CloudFlare account, DNSControl
will *not* automatically add it. You'll need to do that via the
control panel manually or via the `dnscontrol create-domains` command.
## Redirects
The Cloudflare provider can manage Page-Rule based redirects for your domains. Simply use the `CF_REDIRECT` and `CF_TEMP_REDIRECT` functions to make redirects:
{% highlight js %}
// chiphacker.com is an alias for electronics.stackexchange.com
var CLOUDFLARE = NewDnsProvider('cloudflare','CLOUDFLAREAPI', {"manage_redirects": true}); // enable manage_redirects
D("chiphacker.com", REG_NONE, DnsProvider(CLOUDFLARE),
// must have A records with orange cloud on. Otherwise page rule will never run.
A("@","1.2.3.4", CF_PROXY_ON),
A("www", "1.2.3.4", CF_PROXY_ON)
A("meta", "1.2.3.4", CF_PROXY_ON),
// 302 for meta subdomain
CF_TEMP_REDIRECT("meta.chiphacker.com/*", "https://electronics.meta.stackexchange.com/$1"),
// 301 all subdomains and preserve path
CF_REDIRECT("*chiphacker.com/*", "https://electronics.stackexchange.com/$2"),
);
{%endhighlight%}
Notice a few details:
1. We need an A record with cloudflare proxy on, or the page rule will never run.
2. The IP address in those A records may be mostly irrelevant, as cloudflare should handle all requests (assuming some page rule matches).
3. Ordering matters for priority. CF_REDIRECT records will be added in the order they appear in your js. So put catch-alls at the bottom.